Winter storm warnings and advisories are in place across multiple states, with widespread high winds and freezing temperatures expected and forecasters predicting up to 40 inches of snow in some areas of Wyoming.
Why It Matters
Such conditions could create hazardous travel conditions and power outages.
The NWS is urging residents to prepare for dangerous conditions, stock up on essentials, and avoid unnecessary travel.
What To Know
Storm warnings:
Utah
Heavy snow is forecast, with additional snow accumulations of 8 to 18 inches, locally up to 2 feet in the upper Cottonwoods. A warning is in place until 11 p.m. MST Saturday.
Winter driving conditions can be expected on all mountain routes. Traction law restrictions may be enacted.
Colorado
A first warning forecasts accumulations of up to two inches of snow, with winds gusts of up to 60 mph. A second warning, forecasts total snow accumulations between three and 24 inches, with winds gusting as high as 55 mph at Rabbit Ears Pass, Elkhead and Park Mountains.
The first warning is in place until 6 a.m. MST Saturday, with advisories and a second warning, from 11 a.m. Saturday to 11 a.m. MST Sunday.
Snow and ice-covered roads will make travel hazardous, with the possibility of very difficult or impossible travel.
Wyoming
Total snow accumulations between 10 and 18 inches, with 15 to 30 inches above 9,000 feet at Wind River Mountains West are forecast. Total snow accumulations between 15 and 30 inches are expected, with 30 to 40 inches possible in the Teton Range.
A westerly wind gusting 25 to 35 mph is forecast, resulting in areas of blowing and drifting snow.
Additional snow accumulations between 12 and 20 inches late morning Saturday through late morning Sunday are expected, with winds gusting as high as 45 mph in the Sierra Madre Range. Winds gusting as high as 60 mph in the Snowy Range are forecast.
Warnings and advisories are in place from 11 p.m. Friday to 11 a.m. MST Monday.
Idaho
Additional snow accumulations of five to 15 inches below pass level, and 15 to 25 inches above pass level, especially in the backcountry of the Big Hole Mountains and Bear River Range, are forecast. Winds gusting as high as 40 mph are expected and periods of blowing and drifting snow are likely, with limited visibility.
The warning and advisories are in place until 3 p.m. MST Monday.
Additional snow accumulations of four to eight inches in valleys including Stanley and Ketchum are forecast, and 10 to 20 inches from pass level into the backcountry including Galena and Banner Summits. Winds are expected to gust as high as 30 mph.
The warning is in place until 5 a.m. MST Monday.
Advisories:
Oregon
Winds gusting as high as 60 mph are expected. Total snow accumulations of 10 to 16 inches are possible, with up to 24 inches above 5500 feet at South Washington Cascades and the Northern and Central Cascades of Oregon.
The Winter Weather Advisory is in place until 1 p.m. PST Saturday.
Nevada
Snow above 6000 feet is forecast, with accumulations of two to five inches with locally higher amounts of up to eight inches on higher mountain peaks. West to southwest winds up to 55 mph are expected, including in areas below 6,000 feet in Lassen, Eastern Plumas and Eastern Sierra Counties.
The Greater Lake Tahoe area is set for wind gusts up to 60 mph with ridge winds over 100 mph. Wave heights could reach two to five feet on Lake Tahoe.
The advisory runs from 5 a.m. to 8 p.m. PST Sunday.
The Rocky Mountain National Park and the Medicine Bow Range, the mountains of Summit County, the Mosquito Range, and the Indian Peaks are set for one inch of snow and gusty winds. Advisories are in place until 11 a.m. MST Sunday.
Maine
Total ice accumulations of up to two-tenths of an inch are forecast, with the highest ice accumulations in the St. John Valley. An advisory is in place from 11 a.m. Sunday to 4 a.m. EST Monday.
Northeast New Jersey and Southeast New York
Additional ice accumulations around a light glaze are forecast with an advisory in place until 9 a.m. EST Saturday. Very slippery sidewalks, roads and bridges are possible.
Montana
Additional snow accumulations up to 4 inches are forecast, with winds gusting as high as 35 mph in Northwest Beaverhead County. An advisory is in place across the state including East Glacier Zone and until 5 p.m. MST Saturday.
Pennsylvania
Additional ice accumulations in a portion of northeast Pennsylvania are expected and an advisory is in place until 9 a.m. EST Saturday.
Massachusetts
There will be ice accumulations across the state and ab advisory is in place until 1 p.m. EST Saturday.
Alaska
Total snow accumulations of up to three inches are forecast, with winds gusting as high as 40 mph. Visibility could be reduced to one half mile at Thompson Pass and Keystone Canyon. An advisory is in place until 6 a.m. AKST Sunday.
Washington
Advisories are in place across the state, with total snow accumulations between six and 18 inches at West Slopes North Cascades and Passes. There are advisories until 4 p.m. PST Saturday.
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